stone



J. H. STONE.

l Heating Stove.

Patented July 16, 1867.

N. PETERS. PHOTO-LITHOGRAPNER. WASHINGYON. D f24 gleiten ntr datent @fittel COAL-STOVE.

@In .tlgaule maar tu in tlgcse ettcrs lz-rtmt mit matting tutt at tige time TO ALL WHOM`IT MAY CONOERN:

Ile it`known that I, JOHN H. STONE, of the city of Philadelphia, in the State of Pennsylvania, have invented a new and useful improvement in Heat-Radiating Stoves and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a. part of this specitlcatiomin whichi Figure 1 is a vertical central section of the said improv-ed stove, and

Figures 2 and 3 horizontal sections on the dotted lines :v and y respectively of fig. 1-

Like letters of reference indicating the same parts when in the different figures.

The object of my improvement is to produce a heat-radiating, gas-burning stove, having a better draught and greater eifectiveness in the production and radiation of heat, with more simplicity in its construction andV consequent ease and cheapncss of manufacture.

My invention consists in the peculiar combinations and arrangement of parts, substantially as hereinafter described and specified.

.Referring to the drawings, A B is the square base of the stove, and C D the cylindrical body of the same; E, the fuel-pot; F, thegrate; G, an air-space surrounding the fuel-pot; I-I, an air-space surrounding the back and two sides of the ash-drawer I; J, the combustion-chamber; K, a hot-air retort above the fuel-pot, receiving its'supplyV of fresh air through its supporting tubes L L L L, which communicate with the air-spaces Gr and H; M, a centrally placed vertical hollow cylinder, open at its top only, being closed at its bottom by the top of the `retort K, and surrounded by an air-space, N, which communicates with the combustion-chamber J and the interior of the said cylinder; 0,'the escape pipe, reaching concentrically down nearly to the bottom of the cylinder M; and P, the fuel-door. The fuel-pot E has a flange, e', which extends around its upper end into close contact with the body C D of the stove. The fresh air for starting and continuing the combustion of the fuelfin the pot E is introduced in the usual manner, through an opening in the ash-drawer I, orvby slightly withdrawing the latter. The fresh air for eifectingithe combustion of the inammable gases arising in the combustion-chamber J from the incandescent fuel in the fuel-pot E, enters through the opening L in the side of the base A into the air-space H, thence through the openings z into the air-space G, thence through the langee (of the fuel-pot E) and the tubes L L L L, into the heated retort K, and from which latter it is then discharged in numerous slender streams, highly heated, through the perforations c 7c', into the combustionchamber J below, as indicated by the dark arrows in iig. 1. As the hot air enters the combustion-chamber J it inflames the rising inflammable gases and carries the fiume upward through the annular space N to the top or open end of the hollow cylinder M, thence downward within the latter to the mouth of the escape pipe 0, through which latter the draught then passes upward to the usual chimney-Hue, as indicated by the red or fa-int arrows inv fig. 1.

It will therefore be seen that the peculiar curved Vand perforated construction, as well as the location of Jthe retort, is exceedingly well adapted for highly heating and distributing the required fresh air for supporting the combustion of all the Vinflammable gases reaching the combustion-chamber J, and that the arrangements for conducting the said fresh air to 'the retort are such as contribute to its being considerably heated as it passes to the retort, as well as to supply it rapidly; that the cylinder M compels the whole of the heated products'of combustion to pass with the draught upward in a'thin column in direct contact with the large or extensive radiating portion of the body of the stove; and that the position ofthe escape pipe O Within the cylinder M, and also directly above but not in.' contact with the retort K, is exceedingly favorable to its being kept hot, andtherefore to its causing a strong draught, whether the latter passes through the retort, or through the grate and fuel-pot. The whole construction and arrangement produce a most effective radiating, gas-burning stove; and being simple andeasy of construction, the cost of manufacturing is comparatively small.

Having thus fully described my improvement in heat-'radiating stoves, what I claim as new therein of my invention, and desire to secure by Letters Iatent,'is confined to the following, viz

I claim the extended flange c of the fuel-pot E, in combination with the tubes L L L L, retort K, and airspaces G and H, communicating with the external air through the base A B; the said partsbeing arranged to operate together, as described, for the purpose of supplying and heating-,fresh air for the combustion of the inflammable gases arising from the burning fuel in the fuel-pot E'.

v il

I also claim, in combination with the retort K, having tubes L, connecting with hob-air space G, around the fire-pot, the cylinder M, and the escape pipe O` arranged within the upper part of the body C D of the stove, substantially in the manner described, for tlie purpose of diiusing the heat more effectualiy over the Said body of the stove, und also for increasing the draught of the latter as specified.

J. H. STONE.

Witnesses:

BENJ. MoRIsoN. JOHN WHITE, JAMrsv WINSMORE, Jr. 

